NTE7016
Integrated Circuit
FM IF System
Description:
The NTE7016 is a monolithic integrated circuit that provides all the functions of a comprehensive FM–
IF system. This device includes a three–stage FM–IF amplifier/limiter configuration with level detec-
tors for each stage, a doubly–balanced quadrature FM detector, and an audio amplifier that features
the optional use of a muting (squelch) circuit.
The advanced circuit design of the IF system includes desirable deluxe features such as program-
mable delayed AGC for the RF tuner, an AFC drive circuit, and an output signal to drive a tuning meter
and/or provide stereo switching logic. In addition, internal power supply regulators maintain a nearly
constant current drain over the voltage supply range of +8.5 to +16 volts.
The NTE7016 is ideal for high fidelity operation. Distortion in an NTE7016 FM–IF System is primarily
a function of the phase linearity characteristic of the outboard detector coil.
The NTE7016 is available in a 16–Lead DIP type plastic package and can operate over the ambient
temperature range of –40
°
C to +85
°
C.
Features:
D
Exceptional Limiting Sensitivity: 12
µ
V typ. at –3db Point
D
Low Distortion: 0.1% typ. (With Double–Tuned Coil)
D
Single–Coil Tuning Capability
D
Improved S + N/N Ratio
D
Externally Programmable Recovered Audio Level
D
Provides Specific Signal for Control of Interchannel Muting (Squelch)
D
Provides Specific Signal for Direct Drive of a Tuning Meter
D
On Channel Step for Search Control
D
Provides Programmable AGC Voltage for RF Amplifier
D
Provides a Specific Circuit for Flexible Audio Output
D
Internal Supply Voltage Regulators
D
Externally Programmable “ON” Channel Step Width, and Deviation at Which Muting Occurs
Absolute Maximum Ratings: (T
A
= +25
°
C unless otherwise specified)
DC Supply Voltage (Between Pin11 and Pin4)
16V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Between Pin11 and Pin14)
16V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC Current (Out of Pin15)
2mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Device Dissipation, P
D
Up to T
A
= +85
°
C
640mW
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Derate linearly above T
A
= +85
°
C
9.9mW/
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Ambient Temperature Range, T
opr
–40
°
to +85
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
–65
°
to +150
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead Temperature (During Soldering), T
L
(At a distance not less than 1/32” (0.79mm) from case for 10sec max)
+265
°
C
. . . . . . . . . . .
Electrical Characteristics: (T
A
= +25
°
C, V+ = 12V unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Static (DC) Characteristics
Quiescent Circuit Current
I
11
20
31
40
mA
IF Input (Pin1)
V
1
1.2
1.9
2.4
V
AC Return to Input (Pin2)
V
2
1.2
1.9
2.4
V
DC Bias to Input (Pin3)
V
3
No Signal Input, Non Muted
1.2
1.9
2.4
V
RF AGC (Pin15)
V
15
7.5
9.5
11.0
V
DC Reference (Pin10)
V
10
5.0
5.6
6.0
V
Dynamic Characteristics
Input Limiting Voltage (–3dB Point)
V
I
(lim)
–
12
25
µ
V
AM Rejection (Pin6)
AMR
V
IN
= 0.1V,
45
55
–
dB
Recovered AF Voltage (Pin6)
V
O
(AF)
V
IN
= 0.1V,
AM Mod. = 30%
325
500
650
mV
Total Harmonic Distortion:
Single Tuned (Pin6) Note 1
f
O
= 10.7MHz,
f
mod
= 400Hz,
±
–
0.5
1.0
%
Total Harmonic Distortion:
Double Tuned (Pin6) Note 1
THD
V
IN
= 0.1V
Deviation
±
75kHz
–
0.1
–
%
Signal Plus Noise to Noise Ratio
(Pin6)
S + N/N
V
IN
= 0.1V
65
72
–
dB
Deviation Mute Frequency
f
DEV
f
mod
= 0
–
±
40
–
kHz
RF AGC Threshold
V
16
–
1.25
–
V
ON Channel Step
V
12
V
IN
= 0.1V
f
DEV
<
±
40kHz
–
0
–
V
f
DEV
>
±
40kHz
–
5.6
–
V
Note 1. THD characteristics are essentially a function of the phase characteristics of the network
connected between Pin8, Pin9, and Pin10.
